HSS Step Drill Bits with Spiral Flute

Self-starting, spiral flute for efficient swarf clearance and taperred end for easier material withdraw.

For cutting of sheet metal and plastics.

To increase the life of tools and for separation and cooling effect whilst drilling use with cutting paste.

Art No. SIZE L/mm S.P.Q./pc
118512 4-12mmx6mm 65 1
118520 4-20mmx8mm 75 1
118530 4-30mmx10mm 100 1